首页|期刊导航|高技术通讯(英文版)|An Anti-multipath Frequency Hopped Communication Technique in Shallow-water Acoustic Channels
高技术通讯(英文版)2003,Vol.9Issue(2):17-20,4.
An Anti-multipath Frequency Hopped Communication Technique in Shallow-water Acoustic Channels
An Anti-multipath Frequency Hopped Communication Technique in Shallow-water Acoustic Channels
摘要
Abstract
This paper introduces a frequency-hopped (FH) communication system to anti-intersymbol interferences (ISI) caused by the multipath propagation in shallow-water acoustic channels, and uses high-speed digital signal processor (DSP) and serial ADC (MAX121) chip to demodulate received signal efficiently based Fast Fourier Transform (FFT) algorithm. The field experimental results show: a data rate of 1Kbit/s with the bit error rates on the order of 10-4 is demonstrated at 2000 m in the shallow-water acoustic channel of Xiamen harbor, and the key techniques of the system is analyzed in the paper.关键词
shallow-water acoustic channel/frequency hopped/Anti-multipathKey words
shallow-water acoustic channel/frequency hopped/Anti-multipath分类
海洋科学引用本文复制引用
..An Anti-multipath Frequency Hopped Communication Technique in Shallow-water Acoustic Channels[J].高技术通讯(英文版),2003,9(2):17-20,4.基金项目
Supported by Foundation for University Key Teacher by Ministry of Education of China and Fujian Natural Science Foundation of China (No.D0210005) (No.D0210005)